NEW OFFICE BUILDING PROJECT Organizational Arrangement for Construction
NAME: Chen Jie (陈杰)
STUDENT ID: 8
MAJOR: Civil Engineering
Contents
Ⅰ. Project Profile (3)
Ⅱ. The Main Construction Method (5)
Ⅲ. Construction Schedule Chart (19)
Ⅳ. The layout of the jobsite (21)
Ⅰ. Project Profile
This project lies in the Xiaoheshan high education areas of Hangzhou City, near the Xixi wet land. The floor area is about 3117 m2. It is invested by Zhejiang University of Science and Technology, designed by Civil Engineering Designing Institute Xiaoheshan Construction Limited Company. This planning project will be the Office Building, and the total construction time will be 100 days.
Office Building
The plan size of the building is *, and the constructure form is steel concrete frame. Cornice height: . The indoor and outdoor difference is .
The foundation work: C40 reinforcement concrete pilecaps, C30 foundation beam. The MU10 steam pressure sand-lime bricks are applied for the brick foundation laid with mortar.
The superstructure: C40 reinforcement concrete frame columns, and C30 beam and floor. Concrete small cavity blocks with strength grade of MU10 are to be adopted for the frame filler wall. Thickness of the interior masonry wall shall be 190mm, M5 mixed mortar shall be used for the brickwork with elevations higher than , MU10 autoclaved lime-sand bricks and cement mortar bricks shall be used for brickwork with elevations
lower than . Besides, waterproof mortar with blending propotion of 1:2 shall be plastered with thickness of :2 cement mortar (blended with water-proofing additives equivalent to 5% of the cement weight) shall be plastered to the elevation of with thickness of 20mm for the wall body horizontal damp-proof coating.
Roof work: on the cast-in-situs slab, the sequential layer as follows: 1:10 cement perlite sloping leveling minimum ; Spread the APP bitumen waterproof book of the ; Squeeze the mold foam the plank, 140mm; 1: cement mortar leveling THK. 20mm; Waterproof book of PVC, ; Moisture retention / protection mat; Drainage board; Soil work the cloth protect the mat; Light-weight the artificial synthesize soil. 120mm; Vegetation.
Finishing and Decoration Work: Outer wall decoration, the wall is smoothed by 1: cement mortar with thickness in 20mm, and 30 thicked dull-finish granite; Inside decoration: Hot galvanized coating is painted on the surface of the keel of the supended ceiling, the keel can be dismantled by hand for the maintenance of the air-conditioners and electromechanical equipments of power lines; Light-weight partition wall: Adopt steel keel bi-layer fire proofing gypsum plate partition wall. The keel adpots hot galvanized zinc plate of Series 75 with thickness of and .
Flooring Work:（1）Meeting room office: carpet thickness is 3mm; （2）Hall, tea room, storage room: waxing fire plate black granite 600*600*20 cement adhersive 5 thick; （3）Canteen, corridor: thick rubber floor; （4）Testing rooms and office, IT offices: 5mm thick rubber floor; （5）Main computer room: 1mm of gravity flow epoxy daub layer; （6）Sanitary room, cleaning room, tea house: anti-slipping floor 5mm.
Doors and windows work: External all alloy window adopts hollow glass with coating film an low radiation, and the frame adopts the bridge-cutting energy saving. Steel frame should get hot galvanizing and anti corrosion treatment and the alloy window is treated with anodizated compoundd film, thickness ≥μm.
Substation & Gate house
The building area for Substation & Gate house is , and the structure form is one floor reinforcement concrete frame.
The foundation is independent column base, the pilecap and foundation beam is C25 concrete.
Ⅱ. The Main Construction Method
The Main Construction Method for the Civil Work
Process for Site Execution
The Foundation Work
the alignment—Plain concrete blinding, and make curing—make the alignment—foundation reinforcement binding—set up the formwork—casting concrete—make curing, remove the form--lay the foundation wall, embed the pipes and what ever required—backfill, level the site
The Super-Structure
Make the alignment—set up the column reinforcement steel –make the form work—cast the concrete—make curing, remove the form--fix the beam and slab reinforcement steel and the form —cast beam and slab
concrete—make curing, remove the form—lay block work for the wall the execution of the super-structure, reasonably organize the work force with the form work and concrete casting as the core. We will have our work forces of different trade to work continuously to avoid them from sitting idle. The project management will carry out the execution in a way as the assemble line works and various groups will work orderly and in turns. When the main structure is completed, block and brick laying for the walls will be executed from the ground floor to roof. Indoor decoration and exterior work may start in the early stage in order to guarantee timely completion as planned.
The Method for the Main Items
The Earth Work
foundation of this project mainly consists of separate piers. The concrete volume of the foundation work is considerably large. The working procedures are numerous, the techniques are complex, high qualities are required and the time is pressing. So it is necessary to do well the pre-construction preparations, and to adopt effective technical and organizational measures so as to ensure the foundation work to be completed soonest possible with high qualities and thus creating favorable conditions for the super structure’s execution.
The excavation will be controlled as 20cm higher than the blinding bottom level and then the rest will be done manually. And the bearing layer of the soil is never to be removed. We will get in touch timely with the Client, the designing institute in case that the soil conditions do not comply with those in the soil investigation report or any accidents
happen.
The soil for backfill will be piled up at site and the edge of the pile should be away from the foundation pit less than 3 meters.
It is imperative to invite those from the designing institute, the supervisor and other related units to check the work as the excavation of the foundation pit is completed. The following work can not be started until the result of the said check is ok.
We will invite the supervisor and quality control unit to check the foundation work when the same is done. When the check gives ok, the backfill is to be carried out. The backfilling shall be done simultaneously both in and out of the foundation pit to avoid from the uneven side load. And compaction is made well.
The Moulding board Work
The dimensions of the moulding board shall be correct and surfaces even, having sufficient bearing capacity, rigidity and stability to reliably bear the weight of the concrete newly cast and its side pressure, and other load during the execution. The moulding board should be easy to be fit and dismantle. The moulding board work shall facilitate the reinforcement steel to be bound and fit, the concrete cast and curing. The moulding board work shall be made economically to the extent to satisfy the lifting demand and to reduce the joints with largest possible area.
The Adoption of the Moulding board System: The moulding board work system is selected and decided as the following: firstly it should be advanced, reasonably economic and applicable; secondly, it should be of help in control the project quality and of benefit to the effect of fair
face for the main structure; thirdly, it is low in cost with less investment. All in all, we have to consider the economics and applicability and thus adopt the scientific and reasonable form work system. It is imperative to improve the design of the washers and the counter bolts so as to ensure the rigidity of the form but the cycles less than steel moulding board.
Scaffolds shall be mounted tightly before doing the form work. Before casting, it is imperative to check all the support if they are strong, and if the clips and clamps are properly tightened. When casting, those who have made the moulding board work have to be on the spot and watch the ongoing form work, check the supports now and then to see if there any movable or deformed, and mend in time if needed. It is also imperative to frequently check the crane hook, and see if the bolts and nuts are loose between the slant supports and the platform. Timely removal is needed if any happens.
When making the form work for RCC beam and slabs and their spans are more than 4 meters, the arch shall be made. If there is no specific requirement, the height of the arch shall be 1/1000-1/3000 length of the span.
When removing the form, neither big hammer is used nor other unreasonable ways. If it is difficult to remove the form, claw bar may be applied gently at the bottom. Proper distances shall be maintained between the form and the walls when lifting so as to ensure no breaks made to the concrete faces, edges and corners.
When removing the side moulding board for beams, neither edges nor corners shall be broken. Concrete cubic for testing shall be kept with the same conditions to facilitate the removal of board at the correct time.
The board shall not be removed until the cubic is as strong as . Experiences to tell when shall be gained during execution for different grades of concrete with various cement, on different temperatures and etc. Finally one can tell when to get by his experiences.
The surfaces and joints of the board shall be cleaned immediately after the removal to ensure no stick occurs for the next casting. The board shall be repaired and cleaned after using. Remedies shall be made if any deform happens and parts shall be replaced, etc.
The Reinforcement Steel Work
It is a must to check and test the reinforcement steel brought into site. The checking shall be made including: to check its marks, outlook and take random samples to be tested as per the present state standards. The steel can only be used until the check is ok.
Before fabricating, the steel bars shall be cleaned without any damage. Paint stains and rust shall be cleaned up before using.
In order to ensure the correct dimensions of the steel work, special tools like clamps can be made to control the same.
During execution, the binding joints shall be not in one line. The center of the joint to the overlap length (L1) shall be less than L1. The percentage (the cross section of the steel bars under stress with binding joints be divided by the total cross section of the bars under stress) shall comply with the stipulation: the length under stress shall be less than 50%. S(net space) shall no be smaller than D (diameter) but not small than 25 mm.
For welding, it is imperative to check the joint’s outlook, the joint itself, the bent angle(no greater than 4 or 70/1000) and the axis
deviation. The joint shall be away from the inflexion (greater or equal to 10D). During execution, cut the bar end even, first weld the high level bars and then the lower ones.
The proper concrete cover and the location of the reinforcement steel shall be checked. It is the main checking for creating the first class quality work for many problems happened in this regard. Cement mortar and plastic spacers made of are used to control the concrete cover. The spacers are usually fixed on the top of the column reinforcement steel and at bottom, plastic ones, to control the concrete coverage.
When fabricating, attention shall be paid to the space between bars and their diameters. The anchor length shall comply with the requirements of drawings and the specifications. For those cantilever structures, the reinforcement steel hall be positioned properly and the concrete cover shall be ensured. No stirrups are missing and the end of the binding seams shall be bent inward to avoid the concrete surface from being stained and rusted.
The Concrete Work
Before execution, the concrete mix ratio shall be designed. Based on the features of the materials at site and the technical requirements of the concrete, calculations shall be worked out and adjustments shall be made in the lab so as to obtain the proper concrete mix ratio which complies with the design and technical requirements for the execution and is also reasonably economic.
Before concrete casting, form work, reinforcement steel work and those hidden items shall be checked. For formwork, check its level,
position, parts and elements to see if they all comply with the designing requirements. Check the arch if it is correct. Check the joints, corners supports, reinforcement steel, embedded elements and their numbers, locations, welding points, water and electrical pipes, ventilation ducts and shafts, their numbers and locations, and etc, till all these comply with the designing requirements and specifications. Checks are carried out within the work groups, among the work groups of different trades, and by the professional quality inspectors and then submit to the Supervisor and the representatives of the Client for approval. Only when the above- mentioned checks including on hidden items are completed without finding any mistakes, can concrete casting be carried out. During casting, carpenters and rebar men shall be at the spot to ensure that no deform of either form work or reinforcement steel happens.
Casting for the main project structure twill be dong by the concrete pump. So the concrete shall comply with the intensity and endurance by the design requirements and specifications, and also conveyable through the pipes by the pump. In order to guarantee the execution quality and progress target, it is imperative to choose the ready made concrete supplier with good credit and rather powerful, who supply the concrete up to the state standards. Besides, the quality of the materials shall be strictly controlled.
The execution method：（1）Before discharge, the trans-mixer shall properly mix 30 seconds;（2）Before pumping the concrete, all the water in the storage drum and pipes shall be cleared away, then add the same mix ratio mortar (1:2 cement mortar) to lubricate the pipes. After that discharge the concrete;（3）when starting, the operator shall pump the concrete at rather low speed, and then speed up until normal operation.
If the concrete supply is not in time, keep the slow and continuous pumping. （4）Before pumping coming to an end, work out the volume of th concrete needed and inform the batching plant of the same;（5）Trans-mixer should be timely cleaned after casting.
Casting procedures by the pump：（1）From far away to closer places;（2）For the same area, first the vertical structures, then the horizontal ones, layer by layer;（3）If no joints are permitted, the time difference between two areas or two layers shall not longer than the time concrete sts.（4）When casting, if the lower layer of concrete has set, then joint has to be made between the upper layer and the lower one.
Vibrations shall be made by professionals and in so doing: prompt insert the vibrator and slow pull-out, avoid from prying; make vibration about 20-30 seconds for each point and always avoid from making over-vibrations. Also avoid from hit the reinforcement steel, form, rings, embedded plates or units. The insertion of the vibrator head shall be no less than 50 cm.
During casting, professional carpenters shall watch the form work. Should any deform or displacement happens, immediately stop casting and make remedies, which shall be completed before the set of the concrete already cast.
12 hours after casting, the concrete shall be covered and cured with water. For the concrete made of Portland cement and iron Portland cement, the sad time shall not less then 7 hours. For the concrete with slow set additives or barrier property, the said time shall not less than 14 hours. Watering shall be made as frequently as to keep the concrete wet and damp. In summer, make more frequent watering to ensure its surface
being wet and carefully cover it with polythene sheet, avoid from cracks appearing.
Take protective measures for the surfaces of those slabs and staircase steps already completed casting. When the rigidity is , people may step on them. To avoid the slab from deforming and cracking due to carrying load too early, the welding machine and the steel bars shall not be directly laid on the slabs cast at site.
The Brick and Block Work
MU10 standard bricks shall be laid with sand cement mortar in this project. The exterior wall above level shall be made with multi-hole blocks. The interior wall shall be made of concrete blocks 200mm in thickness.
Before starting the brick and block work, make level of the surface of the foundation and the different floor surfaces, mark the axis, sideline and opening for the first layer.
Mix the mortar by the mortar-mixer and strictly follow the mix ratio.
The arrangement of the bricks and blocks shall follow the drawings. The blocks are laid in the way: upper layer and lower layer are off set joints, the overlap shall be half of the block length but neither smaller than one third of it height, nor smaller than 90 mm. If the overlap does not comply with the requirement, steel plates shall be applied as per the stipulations for block work design.
For exterior wall corner and cross joints, blocks shall be laid with overlaps every other layer.
Positioning and Correction: It is not advisable to make watering
on normal blocks of small size. When the weather is hot and dry, one may spray some water on the blocks. The blocks with less than 28 curing days shall not be worked with. Their rigidity shall comply with the design requirement. Their surfaces shall be cleaned and then move to the work place. The block work shall be made in the way as: first far away places, then closer; first lower layer then upper layer; first exterior wall then interior wall; start from the corner or the positioning block for each layer; correction shall be made when one layer completed; the level and flatness of the wall shall be well controlled.
The wall shall be executed one layer after another and no step-shape wall is allowed. The height of the wall made daily shall not more than meters.
The cross corners and corners shall be made simultaneously. The teeth-shape wall are not acceptable. The horizontal projection of the step-shape wall shall not be smaller than two thirds of it height.
The Roof Water-proofing Work
roof work is one important part of the construction project. The roof work quality is closely related to that of the project. To ensure the roof work quality we have to apply comprehensively the administrative and professional techniques, and scientific methods with the roof structure, its capability, function and outlook as the control points.
Identify the slope, mark the lines, start from the parapet, in the order of ditch and discharge, make the layout to control the level and slope. The slope must comply with the design requirements. The water trap for discharge shall be made as a small pit. The slope shall be smooth for discharge the water. The surface of the screed shall be compacted and easy
for water discharge. When the mortar sets, smoothen with a trawl. Finally remove gently the wooden strips used to separate the whole roof.
The Insulation work: On the surface of the screed apply one layer to separate from the air. Then fix the insulation. It should be level, dry and clean. The insulation blocks shall be fixed close to each other, and overlap properly between the upper and lower layer.
The Protection Layer work: Properly fix the joints and the squares as per the design requirements. Thoroughly clean before casting. Ensure the thickness and the slope. Smoothen the surface with an iron trawl when mortar sets. Then cover the roof with straw bags and make curing for 14 days. No bod is allowed to step on the roof during the curing period.
Water-proof Layer: The base course shall be level and smooth, the slope complies with the design requirements, no grains of sand, dust and etc. The water content shall not be more than 9%.
The Decoration Work
As per the progress of the civil work, many temporary stores for civil work are empty. They may be used for the decoration products and semi-products. Those temporary stores shall be closed and equipped with guards to prevent the said materials from being accidentally damaged and dirtied.
Cleant and wet he walls before working on them. Water the wall wet through one day before plastering. Hollow blocks shall be wetted 2 days in advance and more than twice a day (It depends on the weather conditions at site.)
Before plastering check the walls if they are level, vertical and etc. Then make cakes and guidelines for plastering. The upper cakes are
on the height of m while the lower cakes just above the top of the skirt. Guidelines or control lines may be made between the cakes as references for the work of rendering.
The mortar for plastering shall be strictly measured and mixed. The mix ratio and the density is subject to the approval. The mortar mixed with cement and gypsum shall be used up before it first sets.
The Technological Process of Plastering: Close the gaps around the doors and windows—clean the walls—splash water and wet the walls—check the walls if level ,vertical—make cakes and guidelines—fix the corner protective strips—plaster the windowsills—plastering: first course, second course—fix the separate strips—smooth the surface course.
The Paint Work
Paint is applied for the surface of block and brick walls. So it is necessary to smooth the plastering surface and wet the wall with brushes. Keep curing for 7 to 14 days under the normal temperature. When the water content is less than 10%, paint can be done. Before painting, fully stir and mix well, and make it without any sediment.
Technical Process: Base course plastering—first coating of putty—second coating of putty—paint
The Door and Window Work
There are various doors and windows in the project. They shall be manufactured as per the requirements and products and semi-products shall be stored separately. Doors and windows of different kinds shall be carefully checked before installation.
The installation of the doors and windows for this project shall
be done with the method of fit-in. The window frames are forbidden to be fixed by fastening bullets. Before installation fabricate concrete blocks similar to the bricks and fix them properly when laying the bricks. The steel plate embed in the block is used to connect the window frames. The installation of the door frames is to connect the wooden blocks embed in the walls. The frames of the door and window work are executed with the wall work. So after the installation of the frames the other work is still going on at site. Workers have to take measures to protect the door and window frames already fixed and no damages will happen to the same.
The Scaffolding Work
The scaffolding work is made with steel pipes and clips with safety net tied around. The base for the vertical pipe shall be leveled and compacted solidly. The water is easy to be discharged at site and no water will gather around on the ground surface.
The distance between the inner and outside bars is , the row space the height of each layer and the distance between the wall and the inner bars,20-30cm. the longer and shorter bars are 10-20cm out of the scaffolding. The whole scaffolding is supported with bridgings thus forming a complete system.
The Removal of the Scaffold，the removal will be done from the top to bottom. Take away whatever has been removed. The ties to the wall to fight against the wind shall not be moved in advance. The two bridgings at the ends shall be removed after the middle ones. Special attention shall be always paid to the completed products. Also protect the original point for settlement observation.
The Main Construction Method for Finishing Work
Main construction measure for outer wall
Before the panel of veneer’s installation, should follow the requirements of the building design drawing, verified the physical dimension of installing position of the decorations panel and deviation situation conscientiously at first. For example, vertical degree, roughness and the matrices of wall the size that is increased and decreased. Then work out the amended drawing. There should reconfigure the board if the difference goes beyond the allowed deviation. And this reconfiguration should base on the premise that matrices and distance of surface of decorations panel are not smaller than 50MM. Follow the building design drawing to mark the installed line on the wall, and guarantee the size to be correct. If seam width of panel design of the decoration has no requirements, should accord with the regulations of relevant norms.
Construction method of the light weight partition wall
The partition wall of this project adopts the light-weight steel fossil fragments gypsum board, its craft installation as follows: Put the line for the wall after the structure is confirmed----the construction of wall base-----install the ground keel and shed keel------ Fix various entrances cave and doors---- Install one side gypsum board----- The water and electricity pipe piercing through the line and confirming------install another side gysum board------the joint work-----Connect fixed apparatus, electric----the decoration for wall----Construction for skirtings.
Ⅲ. Construction Schedule Chart
Construction Schedule Chart
During the construction management, apply planning management method to bring each link of construction into the track of plan, and strictly execute various regulations in the plan.
The following plan has been carried out during the construction management of the project: Overall schedule control plan.
Ⅳ. The layout of the jobsite The layout of the jobsite
沈阳大学
2.3 MASM的介绍 MASM是微软公司开发的汇编开发环境，拥有可视化的开发界面，使开发人员不必再使用DOS环境进行汇编的开发，编译速度快，支持80x86汇编以及Win32Asm是Windows下开发汇编的利器。它与windows平台的磨合程度非常好，但是在其他平台上就有所限制，使用MASM的开发人员必须在windows下进行开发，历经二三十年的发展，目前MASM的版本已升至6.15，支持MMX Pentium、Pentium II、Pentium III及Pentium 4等指令系统。 2.4总体设计功能 本次课程设计的内容是采用汇编语言设计一个运行于计算机的“霓虹灯”的模拟显示 程序，由$及*字符相间，从两侧向中间螺旋汇聚直至形成一个矩形，这就要求该霓虹灯能够动态地进行变化；霓虹灯模拟显示程序主要是进行程序循环调用，可以通过CMP、JMP、JZ、RET等命令进行跳转。由于是霓虹灯的模拟显示，因此在进行程序循环调用前需要进行数据段定义，以使子程序在进行调用时能够根据数据段的定义来执行，最后显示结果。 定时器中断处理程序：计数器中断的次数记录在计数单元count中，由于定时中断的引发速率是每秒18.2次，即计数一次为55ms，当count计数值为18时，sec计数单元加一（为1秒）。 视频显示程序设计：一般由DOS 或BIOS调用来完成。有关显示输出的DOS功能调用不多，而BIOS调用的功能很强，主要包括设置显示方式、光标大小和位置、设置调色板号、显示字符、显示图形等。用INT 10H中断即可建立某种显示方式。用DOS功能调用显示技术，把系统功能调用号送至AH，把程序段规定的入口参数，送至指定的寄存器，然后由中断指令INT 21H来实现调用。 键盘扫描程序设计：利用DOS系统功能调用的01号功能，接受从键盘输入的字符到AL寄存器，以及检测键盘状态，有无输入，并检测输入各值。 2.5详细功能设计 2.5.1主程序功能 主程序通过调用各个子程序来实现清屏，改变图形等功能，具体调用过程如图1所示。 沈阳大学
电子线路课程设计题目 （模电、数电部分） 一、锯齿波发生器 二、语音放大电路 三、可编程放大器 四、数字频率计 五、可调电源 六、汽车尾灯控制电路 2011．09
一、设计一高线性度的锯齿波发生器 要求： （1）利用555定时器和结型场效应管构成的恒流源设计一高线性度的锯齿波发生器；参考电路如图所示； （2）在EWB中对该电路进行仿真； （3）焊接电路并进行调试；调试过程中思考： a、电路中两个三极管的作用是什么？其工作状态是怎么样的？ b、R3阻值的大小会对锯齿波的线性度产生什么影响？ c、输出锯齿波的幅值范围多大？ d、调节电路中的可调电阻对波形有什么影响？ e、LM324的作用是什么？ （4）参考电路图中采用的是结型场效应管设计的，若采用N沟道增强型VMOS管和555定时器来设计一高线性度的锯齿波发生器，该如何设计？ LM324 图2 高线性度锯齿波发生器的设计
二、语音放大电路的设计 通常语音信号非常微弱，需要经过放大、滤波、功率放大后驱动扬声器。 要求： （1）采用集成运算放大器LM324和集成功放LM386N-4设计一个语音放大电路；假设语音信号的为一正弦波信号，峰峰值为5mV，频率范围为100Hz~1KHz，电路总体原理图如下所示； 图4 语音放大电路 （2）仔细分析以上电路，弄清电路构成，指出前置放大器的增益为多少dB?通带滤波器的增益为多少dB? （3）参照以上电路，焊接电路并进行调试。 a、将输入信号的峰峰值固定在5mV，分别在频率为100Hz和1KHz的条件下测试前 置放大的输出和通带滤波器的输出电压值，计算其增益，将计算结果同上面分析 的理论值进行比较。 b、能过改变10K殴的可调电阻，得到不同的输出，在波形不失真的条件下，测试集 成功放LM386在如图接法时的增益； c、将与LM386的工作电源引脚即６引脚相连的10uF电容断开，观察对波形的影响， 其作用是什么？ d、扬声器前面1000uF电容的作用是什么？
微机原理实验报告 实验名称汇编语言程序设计 一、实验目的 1、掌握Lab6000p实验教学系统基本操作； 2、掌握8088/8086汇编语言的基本语法结构； 3、熟悉8088/8086汇编语言程序设计基本方法 二、实验设备 装有emu8086软件的PC机 三、实验内容 1、有一个10字节的数组，其值分别是80H，03H，5AH，FFH， 97H，64H，BBH，7FH，0FH，D8H。编程并显示结果：如果数组是无符号数，求出最大值，并显示； 如果数组是有符号数，求出最大值，并显示。 2、将二进制数500H转换成二－十进制（BCD）码，并显示“500H 的BCD是：” 3、将二－十进制码（BCD）7693转换成ASCII码，并显示“BCD 码7693的ASCII是：” 4、两个长度均为100的内存块，先将内存块1全部写上88H，再 将内存块1的内容移至内存块2。在移动的过程中，显示移动次数1，2 ，3…0AH…64H（16进制－ASCII码并显示子程序） 5、键盘输入一个小写字母(a~z)，转换成大写字母 显示：请输入一个小写字母(a~z)： 转换后的大写字母是： 6、实现4字节无符号数加法程序，并显示结果，如99223344H + 第1页
99223344H = xxxxxxxxH 四、实验代码及结果 实验代码见代码附录 1.1程序运行结果 图1 无符号最大值结果截图 1.1 程序运行结果
图2 有符号最大值截图2.0 程序运行结果
图3 BCD码显示3.0 程序运行结果
图4 ASCII码显示4.0 程序运行结果
图5 移动次数显示5.0 程序运行结果
软件工程课程设计报告人事管理系统
软件工程课程设计 题目人事管理系统 系计算机系 专业班级软件工程（动画方向）（2）班 学生姓名贾秋洪 学号 2358069 指导教师姜青山 年 6 月 18 日 1.课程题目 人事管理系统设计 2.概述 2.1本课题的来源 A公司是一家以寿险营销为目的的寿险公司，公司员工众多业务流量大，为了方便管理，我制作了一个人事管理系统。主要经
过员工基本信息录入、修改、查询、删除以及员工考勤等方面来对员工综合考评。以便对员工发放工资进行合理分配。这样能提高领导的人事管理水平还能提高员工的积极性。经过现代计算机技术与企业管理相结合，实现人事管理系统的科学化、信息化、现代化，而且适合一般人群使用。 企业人事管理是相对企业内部员工的管理。集人员、考勤、工资、员工培训、系统功能等于一体的大型管理系统，为公司在人事管理等方面提供极大的方便。本软件是以中小型企业为背景而设计开发的，界面美观、使用方便。本系统主要以人员管理、考勤管理、统计分析管理、工资核算等，是企业人事管理必不可缺的好帮手。 2.2本课题目的、实现功能与预期成果 2.2.1目的 当前市面上流行的人事管理系统不少。可是，对于A公司来说，不需要大型的数据库系统。只需要一个操作方便，功能实用，能满足本中心对数据的管理及需求的系统。我们的目标就是在于开发一个功能实用、操作方便，简单明了的人事管理系统。 2.2.2实现功能 能够录入人事的基本资料，在操作上能够完成诸如添加、修改、删除、按各种条件进行查询、新用户的设置及密码修改等方
面的工作，基本满足人事日常业务的需要。 2.2.3预期成果 所做出的人事管理系统能让A公司管理层在操作简单的前提下并有效的提高对该公司的人事管理，并经过该系统提高员工的能力。尽量使本系统做到是一个科学化、信息化、简单使用的人事管理系统。 3．系统分析 3.1系统调研 正式开发管理信息系统之前进行调研是非常必要的，必要对现行系统进行详细的调查，明确用户需求，保证开发的新系统的功能与用户的要求相吻合，避免耗费大量的人力、物力、财力，新系统的开发却失败的悲剧发生。 3.2可行性分析概述 可行性分析是在A公司的要求和系统调研的基础上进行的，对新系统的开发从社会、技术、经济、管理等方面进行分析，并得出新系统的开发工作可行、不可行、需要修改、追加投资、暂缓开发、分步实施等方案和结论，最后完成可行性分析。 可行性分析一般可定义为：可行性分析是在建设的前期对工程项目的一种考察和鉴定，对拟议中的项目进行全面与综合的技术、经济能力的调查，判断它是否可行。 可行性分析阶段的主要工作包括以下几个方面：
模拟电路课程设计心得 体会 内部编号：（YUUT-TBBY-MMUT-URRUY-UOOY-DBUYI-0128）
精选范文:《模拟电路》课程设计心得体会(共2篇)本学期我们开设了《模拟电路》与《数字电路》课，这两门学科都属于电子电路范畴，与我们的专业也都有联系，且都是理论方面的指示。正所谓“纸上谈兵终觉浅，觉知此事要躬行。”学习任何知识，仅从理论上去求知，而不去实践、探索是不够的，所以在本学期暨模电、数电刚学完之际，紧接着来一次电子电路课程设计是很及时、很必要的。这样不仅能加深我们对电子电路的任职，而且还及时、真正的做到了学以致用。这两周的课程设计，先不说其他，就天气而言，确实很艰苦。受副热带高气压影响，江南大部这两周都被高温笼罩着。人在高温下的反应是很迟钝的，简言之，就是很难静坐下来动脑子做事。天气本身炎热，加之机房里又没有电扇、空调，故在上机仿真时，真是艰熬，坐下来才一会会，就全身湿透，但是炎炎烈日挡不住我们求知、探索的欲望。通过我们不懈的努力与切实追求，终于做完了课程设计。在这次课程设计过程中，我也遇到了很多问题。比如在三角波、方波转换成正弦波时，我就弄了很长时间，先是远离不清晰，这直接导致了我无法很顺利地连接电路，然后翻阅了大量书籍，查资料，终于在书中查到了有关章节，并参考，并设计出了三角波、方波转换成正弦波的电路图。但在设计数字频率计时就不是那么一帆风顺了。我同样是查阅资料，虽找到了原理框图，但电路图却始终设计不出来，最后实在没办法，只能用数字是中来代替。在此，我深表遗憾!这次课程设计让我学到了很多，不仅是巩固了先前学的模电、数电的理论知识，而且也培养了我的动手能力，更令我的创造性思维得到拓展。希望今后类似这样课程设计、类似这样的锻炼机会能更多些!
) 汇编语言课程实验报告 实验名称 课程设计1 实验环境 硬件平台：Intel Core i5-3210M 操作系统：DOSBox in Windows 软件工具：Turbo C , Debug, MASM 实验内容 《 将实验7中的Power idea公司的数据按照下图所示的格式在屏幕上显示出来。 实验步骤 1.要完成这个实验，首先我们需要编写三个子程序。第一个子程序是可以显示字符串到屏 幕的程序，其汇编代码如下： ;名称：show_str
;功能：在屏幕的指定位置，用指定颜色，显示一个用0结尾的字符串 ;参数：（dh）=行号，（dl）=列号（取值范围0～80），（cl）=颜色，ds：si：该字符串的首地址 ;返回：显示在屏幕上 ￥ show_str: push ax push cx push dx push es push si push di mov ax,0b800h - mov es,ax mov al,160 mul dh add dl,dl mov dh,0 add ax,dx mov di,ax mov ah,cl . show_str_x: mov cl,ds:[si] mov ch,0 jcxz show_str_f mov al,cl mov es:[di],ax inc si inc di 【 inc di jmp show_str_x show_str_f: pop di pop si pop es pop dx pop cx } pop ax ret 2.第二个程序是将word型数据转换为字符串，这样我们才能调用第一个程序将其打印出
南京理工大学 电子线路课程设计 实验报告
摘要 本次实验利用QuartusII7.0软件并采用DDS技术、FPGA芯片和D／A转换器，设计了一个直接数字频率信号合成器，具有频率控制、相位控制、测频、显示多种波形等功能。 并利用QuartusII7.0软件对电路进行了详细的仿真，同时通过SMART SOPC实验箱和示波器对电路的实验结果进行验证。 报告分析了整个电路的工作原理，还分别说明了设计各子模块的方案和编辑、以及仿真的过程。并且介绍了如何将各子模块联系起来，合并为总电路。最后对实验过程中产生的问题提出自己的解决方法。并叙述了本次实验的实验感受与收获。 关键词数字频率信号合成器频率控制相位控制测频示波器 Abstract This experient introduces using QuartusII7.0software, DDS technology，FPGA chip and D／A converter to design a multi—output waveform signal generator in which the frequency and phase are controllable and test frequency,display waveform. It also make the use of software QuartusII7.0 a detailed circuit simulation, and verify the circuit experimental results through SMART SOPC experiment box and the oscilloscope. The report analyzes the electric circuit principle of work,and also illustrates the design of each module and editing, simulation, and the process of using the waveform to testing each Sub module. Meanwhile,it describes how the modules together, combined for a total circuit. Finally the experimental problems arising in the process of present their solutions. And describes the experience and result of this experiment. Keywords multi—output waveform signal- generator frequency controllable phase controllable test frequency oscilloscope 目录
西北师范大学 计算机科学与工程学院 微机原理与汇编语言 课程设计报告 设计题目：中断控制点阵显示与音乐模块姓名： 学号： 专业班级： 系所中心： 指导老师： 起讫时间： 设计地点： 2016年8月20日
摘要 使用8086汇编语言，在唐都TD-PITE实验箱上进行硬件连线，在计算机上采用与该实验箱配套的软件进行输入，观察实验结果。设计思路是利用在实验箱上i386内集成的两片8259芯片分别进行中断，通过实验箱上的两个脉冲开关发送信号到总线上开放的两个中断口，送入CPU内部的8259中。此时按下脉冲开关kk1+，第一个中断发生，在16*16点阵上循环滚动显示“西北师大汇编设计李泓毅”，若按下kk2+则第二个中断发生，执行音乐模块子程序，利用8254芯片开始响应预先编排好的音乐。 【关键词】级联中断；8259芯片；16*16点阵；8254芯片；SPK音乐模块；脉冲信号
目录 摘要 (2) 第一章课程设计 (2) 1.1 目的和任务 (2) 1.2 设计环境、设备与器材 (2) 第二章设计内容和方案 (3) 2.1 设计内容 (3) 2.2 设计方案 (3) 第三章课程设计相关原理简述 (3) 第四章设计实现 (4) 4.1 系统设计框架结构 (4) 4.2 系统硬件设计 (4) 4.3 系统软件设计 (6) 4.4 程序流程图 (6) 4.5 核心数据结构 (8) 4.6 关键代码片段分析 (10) 第五章设计验证 (10) 5.1 验证步骤及结果 (10) 5.2 数据分析 (10) 5.3 遇到的问题及解决 (11) 5.4 需要讨论的其它问题 (11) 5.5 结论 (11) 第六章设计总结 (12) 第七章本课程教学建议 (13) 第八章参考文献 (13) 第九章附录：源代码 (13) 第一章课程设计 1.1 目的和任务 使用8259芯片进行中断程序设计，在第一个中断中响应字模显示模块，在第二个中断中响应音乐发声模块。
目录 第一章绪论 (2) 1.1设计目的及要求 (2) 1.2 设计流程 (2) 第二章原理分析 (3) 2.1 最小系统的结构 (3) 2.2 各电路的原理分析 (3) 第三章原理图绘制 (8) 3.1 原理图设计的一般步骤 (8) 3.2 元件库的设计 (8) 第四章PCB图的绘制 (12) 4.1 创建该项目下的PCB文件 (12) 4.2 绘制PCB (12) 总结 (15) 参考文献 (16) 附录 (17)
第一章绪论 1.1 设计目的及要求 电子线路CAD是以电为主的机电一体化工科专业的专业基础课，作为通信工程专业，要通过学习一种典型电子线路CAD软件altium designer，掌握计算机绘制包括电路（原理）图、印刷电路板图在的电气图制图技能和相应的计算机仿真技能。通过本次设计，达到了解DXP软件的运用，认识51单片机的最小系统的构成以及学会改正制图过程中遇到的问题。 根据课程设计的题目，独立设计、绘制和仿真电路，实现51单片机的最最小系统。要求如下： （1）设计出原理图自己绘制51单片机最小系统的电路图，分析电路图中各小电路的工作原理； （2）用DXP软件画出原理图； （3）用DXP软件仿真出PCB板，熟悉电路板的加工工艺； 1.2 设计流程 本次设计主要是熟练运用DXP作出最小单片机系统的电路图，以下通过介绍最小系统的各部分电路的电路图及原理，通过在DXP上绘制原理图，检查并
修改错误，最后生成完整PCB板。
第二章原理分析 2.1 最小系统的结构 单片机单片微控制器，是在一块芯片中集成了CPU（中央处理器）、RAM （数据存储器）、ROM（程序存储器）、定时器/计数器和多种功能的I/O(输入和输出)接口等一台计算机所需要的基本功能部件，从而可以完成复杂的运算、逻辑控制、通信等功能。 单片机最小系统电路主要集合了串口电路、USB接口电路、蜂鸣器与继电器电路、AD&DA转换电路、数码管电路、复位电路、晶振电路和4*4矩阵键盘等电路。如下介绍几种简单的电路设计。 下图是本次设计的的几个有关电路图总体框图：
燕山大学 汇编语言课程设计说明书 题目：计算机钢琴程序 交通灯控制系统 学院（系）：信息科学与工程学院 年级专业： 10级计算机科学2班 学号： 100104010113 学生姓名：马强 学号： 100104010116 学生姓名：夏洋 指导教师：何海涛、邹晓红 完成日期： 2013年7月3日
目录 1.课程设计的目的和意义........................................................................................................... - 2 - 1.1课程设计目的................................................................................................................ - 2 - 1.2课程设计的意义............................................................................................................ - 2 - 2.题目一：计算机钢琴程序....................................................................................................... - 2 - 2.1系统的主要功能............................................................................................................ - 2 - 2.2总体设计方案................................................................................................................ - 2 - 2.2.1扬声器驱动方式................................................................................................. - 2 - 2.2.2延时原理............................................................................................................. - 3 - 2.2.3键盘控制发声程序............................................................................................. - 4 - 2.2.4设计总结............................................................................................................. - 5 - 2.3作品使用说明................................................................................................................ - 6 - 3.题目二：交通灯控制系统....................................................................................................... - 6 - 3.1系统的主要功能............................................................................................................ - 6 - 3.2 系统工作原理............................................................................................................... - 6 - 3.2.1 8259的工作原理................................................................................................ - 6 - 3.2.2 8255A的工作原理：...................................................................................... - 7 - 3.2.3 8253的工作原理：............................................................................................ - 7 - 3.3总体设计方案................................................................................................................ - 7 - 3.3.1程序流程图......................................................................................................... - 8 - 3.3.2接口电路图....................................................................................................... - 11 - 3.4交通灯的设计总结...................................................................................................... - 11 - 4.课程设计心得体会................................................................................................................. - 12 - 5.参考文献................................................................................................................................. - 12 - 6.附录：程序代码..................................................................................................................... - 12 - 6.1计算机钢琴程序代码.................................................................................................. - 12 - 6.2交通灯控制系统代码.................................................................................................. - 14 -
电子线路课程设计 总结报告 学生姓名： 可行性，选择适合设计方案，并对设计方案进行必要的论证。本课题以小功率调幅发射机为设计对象，并对其主振级、低频电压放大级、调制级、高频功率放大级进行了详细的设计、论证、调试及仿真，并进行了整机的调试与仿真。设计具体包括以下几个步骤：一般性理论设计、具体电路的选择、根据指标选定合适器件并计算详细的器件参数、用multisim进行设计的仿真、根据仿真结果检验设计指标并进行调整。最后对整个设计出现的问题，和心得体会进行总结。 关键词调幅发射机；振荡器；multisim仿真设计
一、设计内容及要求 (一)设计内容：小功率调幅AM发射机设计 1.确定小功率调幅发射机的设计方案，根据设计指标对既定方案进行理论设计分析， 并给出各单元电路的理论设计方法和实用电路设计细节，其中包括元器件的具体选择、参数调整。 根据设计要求，要求工作频率为10MHz，输出功率为1W，单音调幅系数 m。由于载波频率为10Mhz，大多数振荡器皆可满足，提供了较多的选择且不需要 8.0 = a 倍频。由于输出功率小，因此总体电路具有结构简单，体积较小的特点。其总体电路结构 可分为主振荡电路（载波振荡电路）、缓冲隔离电路、音频放大电路、振幅调制电路、功
(二）单元电路方案论证 1.主振荡电路 主振荡电路是调幅发射机的核心部件，载波的频率稳定度和波形的稳定度直接影响到发射信号的质量，因此，主振荡电路产生的载波信号必须有较高的频率稳定度和较小的波形失真度，主振荡电路可以有四种设计方案：RC正弦波振荡电路、石英晶体振荡电路、三点振荡电路、改进三点式（克拉泼）振荡电路。 2.振幅调制电路 振幅调制电路是小信号调幅发射机的核心组成部分，该单元实现将音频信号加载到载波上以调幅波形式发送出去，振幅调制电路要能保证输出的信号为载波信号的振幅随调制信号线性变化。
汇编语言课程设计报告 ( 2011 -- 2012 年度第 2 学期) 实现加减乘除四则运算的计算器 专业 计算机科学与技术 学生姓名 班级 学 号 指导教师 完成日期
目录 目录 (2) 1概述 (1) 1.1 设计目的 (1) 1.2 设计内容 (1) 2系统需求分析 (1) 2.1 系统目标 (1) 2.2 主体功能 (1) 2.3 开发环境 (1) 3 系统概要设计 (2) 3.1 系统的功能模块划分 (2) 3.2 系统流程图 (3) 4系统详细设计 (3) 5测试 (4) 5.1 测试方案 (4) 5.2 测试结果 (4) 6小结 (5) 参考文献 (6) 附录 (7) 附录源程序清单 (7)
实现加减乘除四则运算的计算器 1 概述 1.1 设计目的 本课程设计是在学完教学大纲规定的全部内容、完成所有实践环节的基础上，旨在深化学生学习的汇编语言课程基本知识，进一步掌握汇编语言程序设计方法，提高分析问题、解决问题的综合应用能力。 1.2 设计内容 能实现加、减、乘、除的计算；该程序接受的是16进制数；执行时，需要在文件名后直接跟上计算表达式，如在命令提示符下执行结果如下： c:\tasm>js 3+2 5 2 系统需求分析 2.1 系统目标 本次汇编语言课程设计的最终目的是要实现一个简单加减乘除四则运算的计算器，要求编写一个程序，每运行一次可执行程序，可以实现数的加减乘除四则运算。比如，十进制数的加减乘除四则运算。我们曾经学习过两个具体数字进行加减法运算，但是对于简单计算器用汇编语言实现难点在于这两个要做运算的数是未知的，是由自己调用中断输入到屏幕上并要用程序存储起来的数，然后才能对这两个数进行运算，而且做的是加法运算、减法运算乘法运算还是除法运算也未可知，为此我们还要判断用户所输入的运算是四则运算中的哪一个运算。此外，运算过程中的进位或是借位，选择用什么样的方式进行输出，如何实现清屏等也是要解决的问题。 2.2 主体功能 系统分析主要包括设计的功能分析和系统的流程，功能分析放在首位，每一个软件都要能满足一定的功能才有使用价值。根据功能需求来创建应用程序。 本设计的功能如下： 1、输入2个数，先判断是加减运算还是乘除运算，再进行计算 2、判断符号是否为运算符 3、回车为换行符 4、用十进制或十六进制输出运算结果 2.3 开发环境 TASM5.0集成环境
软件工程课程设计 题目人事管理系统 1.课程题目 人事管理系统设计 2.概述 2.1本课题的来源 A公司是一家以寿险营销为目的的寿险公司，公司员工众多业务流量大，为了方便管理，我制作了一个人事管理系统。主要通过员工基本信息录入、修改、查询、删除以及员工考勤等方面来对员工综合考评。以便对员工发放工资进行合理分配。这样能提高领导的人事管理水平还能提高员工的积极性。通过现代计算机技术与企业管理相结合，实现人事管理系统的科学化、信息化、现代化，并且适合一般人群使用。 企业人事管理是相对企业部员工的管理。集人员、考勤、工资、员工培训、系统功能等于一体的大型管理系统，为公司在人事管理等方面提供极大的方便。本软件是以中小型企业为背景而设计开发的，界面美观、使用方便。本系统主要以人员管理、考勤管理、统计分析管理、工资核算等，是企业人事管理必不可缺的好帮手。
2.2本课题目的、实现功能与预期成果 2.2.1目的 目前市面上流行的人事管理系统不少。但是，对于A公司来说，不需要大型的数据库系统。只需要一个操作方便，功能实用，能满足本中心对数据的管理及需求的系统。我们的目标就是在于开发一个功能实用、操作方便，简单明了的人事管理系统。 2.2.2实现功能 能够录入人事的基本资料，在操作上能够完成诸如添加、修改、删除、按各种条件进行查询、新用户的设置及密码修改等方面的工作，基本满足人事日常业务的需要。 2.2.3预期成果 所做出的人事管理系统能让A公司管理层在操作简单的前提下并有效的提高对该公司的人事管理，并通过该系统提高员工的能力。尽量使本系统做到是一个科学化、信息化、简单使用的人事管理系统。 3．系统分析 3.1系统调研 正式开发管理信息系统之前进行调研是非常必要的，必要对现行系统进行详细的调查，明确用户需求，保证开发的新系统的功能与用户的要求相吻合，避免耗费大量的人力、物力、财力，
石英晶体好坏检测电路设计 设计要求 1. 利用高频电子线路及其先修课程模拟电路的知识设计一个电子线路2．利用该电子线路的要求是要求能够检测石英晶体的好坏 3. 要求设计的该电子线路能够进行仿真 4. 从仿真的结果能够直接判断出该石英晶体的好坏 5. 能够理解该电子线路检测的原理 6. 能够了解该电子线路的应用 成果简介设计的该电子线路能够检测不同频率石英晶体的好坏。当有该石英晶体（又称晶振）的时候，在输出端接上一个示波器能够有正弦波形输出,而当没有 该晶振的时候，输出的是直流，波形是一条直线。所以利用该电路可以在使 用晶振之前对其进行检测。 报告正文 （1）引言： 在高频电子线路中，石英晶体谐振器（也称石英振子）是一个重要的高频部件，它广泛应用于频率稳定性高的振荡器中，也用作高性能的窄带滤波 器和鉴频器。其中石英晶体振荡器就是利用石英晶体谐振器作滤波元件构成 的振荡器，其振荡频率由石英晶体谐振器决定。与LC谐振回路相比，石英晶 体谐振器有很高的标准性，采用品质因数，因此石英晶体振荡器具有较高的 频率稳定度，采用高精度和稳频措施后，石英晶体振荡器可以达到很高的频 率稳定度。正是因为石英晶体谐振器的这一广泛的应用和重要性，所以在选 择石英晶体谐振器的时候，应该选择质量好的。在选择的时候要对该晶振检 测才能够知道它的好坏，所以要设计一个检测石英晶体好坏的电路。 （2）设计内容： 设计该电路的原理如下：
如下图所示，BX为待测石英晶体(又名晶振)，插入插座X1、X2，按下按钮SB，如果BX是好的，则由三极管VT1、电容器C1、C2等构成的振荡器工作，振荡信号从VT1发射极输出，经C3耦合到VD2进行检波、C4滤波，变成直流信号电压，送至VT2基极，使VT2导通，发光二极管H发光，指示被测石英晶体是好的。若H不亮，则表明石英晶体是坏的。适当改变C1、C2的容值，即可用于测试不同频率的石英晶体。 图一石英晶体好坏检测电路检测原理图 在上面的电路中，晶振等效于电感的功能，与C1和C2构成电容三点式振荡电路，振荡频率主要由C1、C2和C3以及晶振构成的回路决定。即由晶振电 抗X e 与外部电容相等的条件决定，设外部电容为C L ,则=0,其中C l 是C1、 C2和C3的串联值。 （3）电路调试过程： 首先是电路的仿真过程，该电路的仿真是在EWB软件下进行的，下面是将原图画到该软件后的截图：
汇编课程设计报告
学 号： 课程设计 题目打印水仙花数 学院计算机科学与技术 专业计算机科学与技术 班级 姓名 指导教师
武汉理工大学《汇编语言程序设计》课程设计 2012 年 6 月28 日 课程设计任务书 学生姓名：专业班级： 指导教师：工作单位：计算机科学与技术学院 题目: 打印水仙花数 初始条件： 理论：完成了《汇编语言程序设计》课程， 对微机系统结构和80系列指令系 统有了较深入的理解，已掌握了汇 编语言程序设计的基本方法和技 巧。 实践：完成了《汇编语言程序设计》的4 个实验，熟悉了汇编语言程序的设 计环境并掌握了汇编语言程序的 调试方法。 要求完成的主要任务:（包括课程设计工作量及其技术要求，以及说明书撰写等具体要求） 进一步理解和掌握较复杂程序的设计方 法，掌握子程序结构的设计和友好用户界 3
2.1简要分析 2.1.1原理说明 可以用标签来接收三位数，标签的好处在于可以限制输入的位数，并且通过实际输入位数可以直接进行一部分的异常处理。 将数存到标签后，因为是以ASCII码的形式存的，所以需要进行转换，将其变成十六进制数，转换后将数字存到申请的内存字中。在转换成十六进制数的过程中，可以对输入的数进行异常处理，判断是否输入有误。 在输出水仙花数时，设置一个计数器，从100开始循环判断，直到等于用户输入的数为止，依次判断是否为水仙花数，决定是否输出该数。 在输出时，分别取出水仙花数的个、十、百位数，转换成ASCII码再输出。 系统提示是否继续后，程序对用户输入的信息进行判断，若为y或Y则系统回到初始状态，若为n或N则退出系统，若为其他则提示输入错误并重新输入。 2.1.2程序流程图
第一章概述 1.1系统名称 学生宿舍管理系统 1.2开发及运行环境 CPU Intel? Core(TM)i5-4210M 存4GB 硬盘空间30M以上 输入设备键盘鼠标 操作系统windows 8.0 数据库windows sql server 2005 1.3软件开发计划 2017.12.01-2017.12.04 软件需求分析 2017.12.05-2017.12.09 系统结构设计 2017.12.10-2017.12.15 软件编码及数据 库设计实现 2017.12.16-2017-12.20 软件测试 2017.12.21 软件交付
第二章需求分析 目前，各学校的宿舍管理主要依赖于人工管理，学生宿舍相关的各种信息可以通过宿舍管理系统来集中统一管理，方便的宿舍管理员对宿舍的管理，更有利于宿舍安全以及同学们的健康成长。 2.1 任务概述 宿舍管理系统为了方便管理，尽可能的实现操作简单，易学易用，主要实现以下功能： 1）系统要求用户必须输入正确的用户名和密码才能进入系统； 2）系统应该提供学生住宿情况的基本登记； 3）系统应提供人员来访登记及结束访问的详细登记； 4）系统应提供学生在校期间物品出入宿舍楼的详细情况登记； 5）系统应提供查询功能，以方便用户对学生基本信息的查询（要实现按多种条件的查询）及楼房信息的查询； 6）系统应提供增加、删除、修改用户的功能； 7）增加学生离校的物品管理制度 2.2 宿舍管理系统一层数据流图及数据字典 2.2.1 一层数据流图
图1-1 学生宿舍管理系统一层数据流图 2.2.2 数据字典 以下是图1-1数据流图的数据字典本数据字典主要定义数据4方面容： 名字：数据元素的名字，作为在数据流图中的标识符， 描述：对名字所代表的数据功能和含义加以描述 定义：对名字所代表的实际构成加以解释 位置：表示数据流的来源 名字：管理员 描述：对宿舍管理系统进行操作的人员
计算机与信息工程学院《汇编语言》课程设计四则运算器的设计 专业：计算机科学与技术 班级：控制11-2班 姓名: 倪天天 学号：2011025745 指导教师：郝维来 2013年6月28日
摘要 计算器是最简单的计算工具，简单计算器具有加、减、乘、除四项运算功能。想要用汇编语言实现简单的计算器，就必须通过对数据存储，寄存器的使用，加减乘除相关指令以及模块的调用等汇编语言知识进行运用，以实现一个基本功能完善，界面友好，操作简便易行的计算器。用汇编语言实现简单计算器还涉及到输入输出模块的设计，加减乘除运算的判断以及退出程序的判断的设计。通过对各种指令的合理使用，设计各个功能模块。当实现各个程序模块后，通过程序的调用最终实现一个简单的计算器。 关键词：计算器，汇编语言，四则运算，功能模块
Abstract Calculator is the easiest calculation tools, a simple calculator with addition, subtraction, multiplication, division four arithmetic functions. Want to use assembly language to achieve a simple calculator, you must pass on the data storage, register usage, addition, subtraction, and related instructions such as assembly language module calls the use of knowledge in order to achieve a basic functional, user-friendly, easy to operate easy calculator. Using assembly language to achieve a simple calculator also involves the design of input and output modules, the judgment of arithmetic operations and exit the program to judge design. Through the rational use of various commands, design various functional modules. When implementing various program modules, through a call to the ultimate realization of the program a simple calculator. Keyword:Calculator, assembly language, four arithmetic, functional modules
电子线路课程设计总结报告 学生姓名： 学号： 专业：电子信息工程 班级：电子112班 报告成绩： 评阅时间： 教师签字： 河北工业大学信息学院 2014年2月
课题名称：小功率调幅AM发射机设计 内容摘要：小功率调幅发射机调幅简便，调制所占的频带窄，并且与之对应的调幅接收设备简单常用于通信系统和其它无线电系统中，特别是在中短波广播通信的领域里更是得到了广泛应用。本课程设计的目的即设计一个小功率调幅发射机并使之满足相应的技术指标。让学生综合运用高频电子线路知识，进行实际高频系统的设计、安装和调测，利用相关软件进行电路设计，提高综合应用知识的能力、分析解决问题的能力和电子技术实践技能，让学生了解高频电子通信技术在工业生产领域的应用现状和发展趋势。为今后从事电子技术领域的工程设计打好基础。通过设计主振器，缓冲器，音频放大器，调幅电路最终组成小功率调幅发射机。主振器是用来产生频率稳定的高频载波信号。高频放大器是将高频振荡载波信号放大到足够大得强度。高频功率放大器及调制器是将低频放大器输出的信号调制到载波上，同时完成末级功放。 一、设计内容及要求 1、内容：设计一个小功率调幅AM发射机 2、要求： 发射机工作频率f0=10MHz；发射功率Po大于等于200mW；负载电阻Ra=50Ω；输出信号带宽9kHz平均调幅系数ma大于等于30%，单音调幅系数ma=0.8；发射效率η大于等于50%；残波辐射小于等于40dB； 二、方案选择及系统框图 1、方案选择 低频小功率调幅发射机是将待传送的音频信号通过一定的方式调制到高频载波信号上，放大到额定的功率，然后利用天线以电磁波的方式发射出去，覆盖一定的范围。可选用最基本的发射机结构，系统框图如下图所示，由主振级、高频放大器、音频放大器、高电平调幅电路、缓冲电路结构组成。 （1）主振器 主振器就是高频振荡器，根据载波频率的高低、频率稳定度来确定电路型式。电容三点式振荡器的输出波形比电感三点式振荡器的输出波形好。这是因为电容三点式振荡器中，反馈是由电容产生的，高次谐波在电容上产生的反馈压降较小，输出中高频谐波小；而在电感三点式振荡器中，反馈是由电感产生的，高次谐波在电感上产生的反馈压降较大。另外，电容三点式振荡器最高工作频率一般比电感三点式振荡器的高。 主要原因是在电感三点式振荡器中，晶体管的极间电容与回路电感相并联，在频率高时可能改变电抗的性质；在电容三点式振荡器中，极间电容与电容并联，频率变化不改变电抗的性质。因此振荡器的电路型式一般采用电容三点式。在频率稳定度要求不高的情况下，可以采用普通三点式电路、克拉泼电路、西勒电路。频率稳定度要求高的情况下，可以采用晶体振荡器，也可以采用单片集成振荡电路。本电路采用克拉拨振荡器;